JP2006104583A - Method for clipping embroidered pattern - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for clipping an embroidered pattern, capable of beautifully clipping along the outline edge of the embroidered pattern not inferior to that clipped manually with a skilled worker in the case of clipping the embroidered pattern embroidered on the surface of a hot melt sheet and also in a good efficiency. <P>SOLUTION: This method for clipping the embroidered pattern is provided by forming the embroidered pattern on the hot melt sheet by an embroidering means, irradiating laser light by a laser light-irradiating means while being moved along the outline edge of the embroidered pattern and also irradiating along the outline edge in a state of having a width over the outline edge of the embroidered pattern and the sheet to clip the outline edge of the embroidered pattern from the sheet surrounding the outline edge of the embroidered pattern. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for cutting out an embroidery pattern. More specifically, the present invention relates to an embroidery pattern that irradiates a laser beam along the contour edge of an embroidery pattern formed on a heat-meltable sheet to separate the contour edge of the embroidery pattern from the surrounding sheet. It relates to the method of clipping.

In a conventional embroidery pattern cutting method, first, a heat-meltable sheet is stretched on an embroidery frame of an embroidery sewing machine.
Next, using the embroidery pattern data, the embroidery frame is moved two-dimensionally to form a decorative stitch (also referred to as an embroidery pattern) on the heat-meltable sheet.
Next, the embroidery pattern formed on the heat-meltable sheet is cut out by a heat cutter.
The cutting means first brings the tip of the tip portion of the heat cutter into contact with the contour edge of the embroidery pattern.
Next, by using the cutout data based on the embroidery pattern data (cutout data offset inward from the contour edge of the embroidery pattern data), the embroidery frame is moved two-dimensionally, thereby leading the tip of the heat cutter chip portion. Was moved relatively along the contour edge of the embroidery pattern, and the hot-melt sheet was thermally cut to cut out the embroidery pattern.
In the case of this cutout, the tip of the tip portion of the heat cutter was urged toward the inside of the embroidery pattern.
When the tip of the heat cutter tip is moved relatively along the contour edge of the embroidery pattern, if the embroidery pattern is prominent, the tip of the heat cutter tip is pressed against the contour edge of the embroidery pattern. The embroidery pattern moved along the contour edge of the embroidery pattern, and as described above, the embroidery pattern could be cut out cleanly from the hot melt sheet along the contour edge. (For example, see Patent Document 1)

Japanese Patent Laid-Open No. 10-60773

In this conventional embroidery pattern cutting method, when sewing an embroidery pattern to be cut out, the thread used for embroidery is fine, the needle density in the embroidery pattern is low, and the formed embroidery pattern rises from the surface of the heat-melting sheet. If the embroidery pattern is small, the tip of the tip of the heat cutter will run from the contour edge of the embroidery pattern to the embroidery pattern by the urging force toward the inside of the embroidery pattern, and the hot-melt sheet will melt Will not be.
Therefore, if the urging force is weakened, the tip of the tip portion does not fit perfectly with the contour edge of the embroidery pattern, and the heat-meltable sheet is not blown at the contour edge of the embroidery pattern.
Therefore, there is a problem that the embroidery pattern cannot be cut out from the hot melt sheet along the contour edge.
Furthermore, when the embroidery pattern to be cut out varies in the size of the shrinkage depending on the part of the embroidery pattern due to the embroidery conditions such as the number of needles, the needle density, the embroidery direction, etc. When moving along the contour edge, the urging force at the tip of the tip part varies and the accuracy of the cut-out is lowered.
Furthermore, if the embroidery pattern has an acute angle in the outline of the embroidery pattern to be cut out, an electronically planned drive locus of the embroidery frame and an operation locus with inertia due to the urging force at the tip of the tip portion And the locus of the tip of the tip portion do not match the outline of the embroidery pattern, the quality accuracy of the cutout product is low, and the product value is lost.

Therefore, in order to provide a clear cut around the embroidery pattern and provide products with good product quality, skilled workers in the cut processing are manually cutting out one by one.
However, if the manual cutting operation is performed, there is a problem that the work efficiency is low and the cost is high.

The purpose of this application is to cut out the embroidery pattern embroidered on the surface of the heat-meltable sheet neatly along the contour edge of the embroidery pattern so that it is not inferior to that manually cut by a skilled worker. In addition, an object is to provide a method for cutting out an embroidery pattern that can be cut out efficiently.
The other purpose is that, even when the embroidery pattern to be cut out is a low bulge embroidery pattern from the heat-meltable sheet surface, it is not affected by the height of the bulge from the sheet surface, It is intended to provide an embroidery pattern cutting method that can be cut out neatly along the contour edge of the embroidery pattern so that it is not inferior to that manually cut by a skilled worker. is there.
Another purpose is that, even if the embroidery pattern to be cut out is an embroidery pattern in which the size of the shrinkage varies depending on the part of the embroidery pattern, an acute angle is added to the outline of the embroidery pattern to be cut out. Even if there is an embroidery pattern, the outline shape of the embroidery pattern is not affected by the contour shape of the embroidery pattern, so that the quality accuracy of the cut product is high and it is not inferior to that manually cut by a skilled worker An object of the present invention is to provide a method for cutting out an embroidery pattern that can be cut out beautifully along the edge and can be cut out efficiently.
Other objects and advantages will be readily apparent from the drawings and the following description associated therewith.

  The cutting method of the embroidery pattern in the present invention is to form the embroidery pattern 15 on the heat-meltable sheet 13 by embroidery means, and move the laser beam 24 by the laser beam irradiation means 21 along the contour edge 18 of the embroidery pattern 15. Irradiation, and the irradiation state along the contour edge 18 irradiates with a width extending over the contour edge 18 of the embroidery pattern 15 and the sheet 13, and the contour edge 18 of the embroidery pattern and the embroidery pattern The sheet 13 around the contour edge of the pattern is separated.

  Preferably, the embroidery pattern 15 is formed on the heat-meltable sheet 13 by embroidery means using the embroidery pattern data, and the laser beam 24 by the laser beam irradiation means 21 is used to cut the laser beam 24 by the cutout data based on the embroidery pattern data. Irradiate while moving along the contour edge 18 of the pattern, and the irradiation state along the contour edge 18 irradiates with a width across the contour edge 18 of the embroidery pattern and the sheet 13, What is necessary is just to separate the outline edge 18 of the embroidery pattern and the sheet 13 around the outline edge of the embroidery pattern.

    Preferably, the contour edge of the embroidery pattern irradiated with the laser beam may be such that the embroidery pattern blocks the laser beam so that a sheet positioned under the embroidery pattern does not melt.

  As described above, in the present invention, when an embroidery pattern embroidered on the surface of a heat-meltable sheet is cut out, even if the embroidery pattern to be cut out is an embroidery pattern with a low rise from the surface of the heat-meltable sheet, a laser beam Since the laser beam from the irradiation means is irradiated while being moved along the contour edge of the embroidery pattern, the contour edge of the embroidery pattern and the sheet around the contour edge of the embroidery pattern are separated. It is possible to produce a product with high product value that is neatly cut out along the contour edge of the embroidery pattern so that it is not inferior to that manually cut by skilled workers without being affected by the height of the bulge in the embroidery pattern In addition, there is an effect on quality that can be cut out efficiently.

  Further, in the present invention, when the embroidery pattern embroidered on the surface of the heat-meltable sheet is cut out, even if the embroidery pattern to be cut out is an embroidery pattern in which the size of the shrinkage varies depending on the part of the embroidery pattern, laser beam irradiation is performed. The laser beam emitted by the means is irradiated while moving along the contour edge of the embroidery pattern, and the irradiation state along the contour edge is wide across the contour edge of the embroidery pattern and the sheet, and Because it is irradiated with an area that allows variations in the shrinkage of the stitches, the size of the shrinkage in the contour shape of the embroidery pattern is not affected by the variations, and it is inferior to those manually cut by skilled workers. It has the effect of quality that it is possible to produce a product with high product value that is beautifully cut out along the contour edge of the embroidery pattern so that it can be cut, and it can be cut out efficiently There is an effect of the above.

Furthermore, in the present invention, when an embroidery pattern embroidered on the surface of a heat-meltable sheet is cut out, even if the embroidery pattern has an acute angle portion in the outline of the embroidery pattern to be cut out, the cut-out data based on the embroidery pattern data is used. Based on this, since the laser beam from the laser beam irradiation means is irradiated while moving along the contour edge of the embroidery pattern, the electronic drive trajectory of the embroidery frame based on the cutout data matches the laser beam irradiation trajectory. To do.
Therefore, the embroidery pattern can be cut out along the contour edge of the embroidery pattern with high processing accuracy, and it is cut out beautifully along the contour edge of the embroidery pattern so that it is not inferior to the one manually cut by a skilled worker. In addition, there is a quality effect that a product with a high commercial value can be produced, and there is an operational effect that can be efficiently cut out.

Hereinafter, drawings showing embodiments of the present invention will be described. 1 to 3, reference numeral 1 denotes a known embroidery sewing machine.
In the multi-head embroidery sewing machine 1, 2 is a table, 3 is an upright frame erected on the table, 4 is a horizontal frame erected between the upright frames 3 and 3.
Reference numeral 6 denotes an embroidery head, and a plurality of embroidery heads are attached to the horizontal frame 4 at a predetermined interval.
As is well known, the plurality of embroidery heads 6 include a plurality of needle bars, for example, five needle bars (not shown), and needles 7 fixed to the lower ends of the needle bars.
Reference numeral 8 denotes an embroidery frame which moves along the upper surface of the table 2 in the directions of arrows X and Y. Further, as is well known, a sheet for embroidering can be stretched on the embroidery frame 8.

Reference numeral 10 denotes a control device for controlling the operation of the well-known embroidery sewing machine 1; a microcomputer (not shown) comprising a CPU, ROM, RAM, input / output interface, etc .; and a key input unit 11 for inputting various data; In addition, a display unit 12 such as a display for displaying input data and operating conditions is provided.
The microcomputer includes embroidery pattern data for embroidering the embroidery pattern 15 and cutout data for cutting out the embroidery pattern 15.
The embroidery pattern data includes frame data that determines the amount of sequential movement of the embroidery frame 8 in order to determine the shape of the embroidery pattern 15, and needle data that selects the needle 7 in order to determine the color scheme of the embroidery pattern 15.
The contour edge data of the cutout data enters the inside direction of the embroidery pattern 15 by an average amount of sewing shrinkage of each part of the embroidery pattern 15 on the basis of the contour edge data of the embroidery pattern 15 in the embroidery pattern data. (For example, when the sewing shrinkage amount is 2 mm at the maximum and 1 mm at the minimum, the position is within 1.5 mm from the contour edge data).

Reference numeral 13 denotes a known heat-meltable sheet used for embroidery, and any sheet having a melting point lower than that of the sewing thread 16 forming the embroidery pattern 15 may be used.
Therefore, the heat-meltable sheet 13 may be a well-known resin sheet or the like having a melting point of 60 to 70 ° C. with respect to the sewing thread 16 having a melting point of 170 ° C.

Reference numeral 21 denotes a known laser beam irradiation means, which includes a laser oscillation unit 22 and a controller (not shown) for controlling the laser oscillation unit 22.
The laser beam irradiation means 21 is configured such that the laser beam 24 is irradiated onto the upper surface of the heat-meltable sheet 13 with an arbitrarily adjustable width 24a and an arbitrarily adjustable heat capacity.
The width 24a and the heat capacity of the laser beam 24 to be irradiated are respectively the width over the contour edge 18 of the embroidery pattern and the sheet 13 (for example, the diameter is 2 mm when the average amount of sewing shrinkage is 1.5 mm). At the contour edge 18 of the embroidery pattern irradiated with the laser beam, the heat-meltable sheet 13 is melted, but the embroidery pattern 15 is not melted. It may be determined according to the type and the moving speed of the embroidery frame.

An operation of cutting out an embroidery pattern in the above configuration will be described.
First, a heat-meltable sheet 13 is stretched on the embroidery frame 8 as is well known.
Next, an embroidery pattern 15 is formed on the heat-meltable sheet 13 by the embroidery sewing machine 1 as embroidery means.
That is, by using the embroidery pattern data, the embroidery frame 8 in the embroidery sewing machine 1 is moved two-dimensionally to form the embroidery pattern 15 on the heat-meltable sheet 13.
The embroidery pattern 15 is formed as shown in FIG.

Next, the embroidery pattern 15 formed on the heat-meltable sheet 13 is cut out.
The cutting means is as follows.
First, the embroidery frame 8 is moved, and the embroidery pattern 15 is moved below the laser oscillation port 23 in the laser beam irradiation means 21 as shown in FIG.
The position to be moved is moved to a position where the laser beam 24 is irradiated toward the cutout start point S at the contour edge 18 of the embroidery pattern 15.

Next, using the cutout data based on the embroidery pattern data, the embroidery frame 8 is moved two-dimensionally, and as shown in FIG. 3, the laser beam 24 by the laser beam irradiation means 21 is applied to the contour edge of the embroidery pattern. Irradiate while moving relatively along.
Moreover, the irradiation state along the contour edge 18 is irradiated with a width 24a extending over the contour edge 18 of the embroidery pattern and the sheet 13 as well shown in FIGS. 3 (A) and 3 (B). To do.
Then, in the area 24 a irradiated with the laser beam 24, the upper surface 13 a of the heat-meltable sheet 13 is melted when the temperature rises due to the irradiation of the laser beam 24 and reaches the melting point (for example, 70 ° C.) of the sheet 13.
On the other hand, the temperature of the upper surface 17 of the contour edge 18 of the embroidery pattern 15 also rises moderately due to the laser beam 24 due to the yarn quality. However, since the melting point (for example, 170 ° C.) of the sewing thread 16 forming the embroidery pattern 15 is higher than the melting point of the sheet 13, it does not melt.
Therefore, as shown in FIGS. 3A and 3C, only the sheet around the contour edge 18 of the embroidery pattern is melted.

In this way, the laser beam 24 is irradiated while being relatively moved along the contour edge 18 of the embroidery pattern using the cutout data, and all the contour edges 18 based on the cutout data are irradiated.
Then, the clipping operation using the clipping data is completed.
Then, only the sheet around the outline edge 18 of the embroidery pattern is melted, and the outline edge 18 of the embroidery pattern and the sheet 13 around the outline edge of the embroidery pattern are separated.
It is cut out beautifully along the contour edge of the embroidery pattern.
The cut out embroidery pattern 15 can be used for emblems after being subjected to optional back surface processing such as adhesive processing and addressing processing as needed, or can be used by attaching it to processing cloths such as clothing with adhesive etc. .
In addition, at the contour edge 18 of the embroidery pattern 15 irradiated with the laser beam 24, the laser beam is applied so that the thread 16 existing on the upper surface 17 of the contour edge 18 does not melt the sheet 13b located under the embroidery pattern. Hinder. As a mode to prevent, there are absorption, reflection, etc. so that the thread itself does not hurt.
Therefore, the sheet 13b is not melted, the sheet around the embroidery pattern outline 18 is melted without breaking the embroidery pattern 15, and the embroidery pattern outline edge 18 and the embroidery pattern outline edge around the embroidery pattern outline edge 18 are melted. The sheet can be separated and cut out neatly along the contour edge of the embroidery pattern.

In the embodiment in which the laser beam 24 from the laser beam irradiation means 21 is irradiated while moving along the contour edge 18 of the embroidery pattern, the embroidery frame 8 is moved two-dimensionally and the laser beam 24 is moved along the contour edge of the embroidery pattern. The mode of irradiation while moving relatively has been described.
However, the embroidery frame 8 may be fixed, and the laser beam 24 itself may be moved by the laser beam application means 21 so that the laser beam 24 is irradiated while being moved along the contour edge of the embroidery pattern.
Further, the embroidery frame 8 and the laser beam 24 itself may be moved together, and the laser beam 24 may be irradiated while being moved along the contour edge of the embroidery pattern.

In addition, as shown in FIG. 1, the description has been given of the case where the heat-meltable sheet 13 is integrally stretched on the embroidery frame 8. However, the heat-meltable sheet 13 may be stretched on an embroidery frame (not shown) different from the embroidery frame 8 and the embroidery frame attached to the embroidery frame 8 as is well known.
Further, after the embroidery pattern 15 is formed, the embroidery frame on which the heat-meltable sheet 13 is stretched is removed from the embroidery frame 8 and set on the laser beam irradiation means formed separately from the embroidery sewing machine 1. The laser beam 24 is positioned by an arbitrary means so that the laser beam 24 is irradiated toward the cut-out starting point S at the contour edge 18 of the embroidery pattern 15, and the laser beam irradiation means configured separately from the embroidery sewing machine 1 is used. The embroidery pattern 15 may be cut out.

The schematic block diagram of an embroidery sewing machine provided with a laser beam irradiation means. FIG. 2 is a schematic perspective view for explaining the relationship among an embroidery head, an embroidery frame, a sheet, an embroidery pattern, and a laser beam irradiation means. (A) shows a state where an embroidery pattern is formed, and (B) moves an embroidery frame 8. The state in which the cutting operation is started is shown. FIG. 4 is a diagram for explaining the cutout of the embroidery pattern 15 formed on the heat-meltable sheet 13, wherein (A) is an enlarged schematic diagram for explaining the relationship between the heat-meltable sheet, the embroidery pattern, and the laser beam; ) Is a cross-sectional view along line BB in (A) (for reference, the position of the contour edge with a different amount of sewing shrinkage is indicated by a one-dot chain line), and (C) is a cross-sectional view along line CC in (A). The figure for explaining what melted only the sheet around the contour edge.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Embroidery sewing machine, 2 ... Table, 3 ... Standing frame, 4 ... Horizontal frame, 6 ... Embroidery head, 7 ... Needle, 8 ... Embroidery frame, 10 ... Control device, 13 ... Heat-melting sheet, 15 ... Embroidery pattern, 16 ... Sewing thread, 17 ... Top surface, 18 ... Contour edge, 21 ... Laser beam irradiation means, 22 ... Laser oscillation part, 23 ... Laser oscillation port, 24 ... Laser beam, 24a ... Area

Claims (3)

An embroidery pattern is formed on the heat-meltable sheet by embroidery means,
Irradiate while moving the laser beam by the laser beam irradiation means along the contour edge of the embroidery pattern,
In addition, the irradiation state along the contour edge irradiates with a width extending over the contour edge of the embroidery pattern and the sheet, and the sheet around the contour edge of the embroidery pattern and the contour edge of the embroidery pattern. A method for cutting out an embroidery pattern characterized by separating the embroidery pattern. An embroidery pattern is formed on a heat-meltable sheet by embroidery means using embroidery pattern data, and the laser beam emitted by the laser beam irradiation means is moved along the contour edge of the embroidery pattern using cutout data based on the embroidery pattern data. Irradiate while letting
In addition, the irradiation state along the contour edge irradiates with a width extending over the contour edge of the embroidery pattern and the sheet, and the sheet around the contour edge of the embroidery pattern and the contour edge of the embroidery pattern. Cutting method of embroidery pattern characterized by separating   3. The outline of the embroidery pattern irradiated with the laser beam, wherein the embroidery pattern blocks the laser beam so that a sheet located under the embroidery pattern does not melt. How to cut out embroidery patterns.

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